CN103572446B - A kind of manufacture method of the core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN - Google Patents

A kind of manufacture method of the core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN Download PDF

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CN103572446B
CN103572446B CN201310545710.8A CN201310545710A CN103572446B CN 103572446 B CN103572446 B CN 103572446B CN 201310545710 A CN201310545710 A CN 201310545710A CN 103572446 B CN103572446 B CN 103572446B
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yarn
airjet texturing
fiber
sewing thread
percentage
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CN103572446A (en
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张如全
陈晓林
武继松
李建强
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HUBEI FENGSHU THREAD MANUFACTURING Co Ltd
Wuhan Textile University
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HUBEI FENGSHU THREAD MANUFACTURING Co Ltd
Wuhan Textile University
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Abstract

The present invention relates to the manufacture method of a kind of core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN, belong to field of textiles. the present invention adopts cotton fiber and low-melting point polyester staple fiber to prepare the cotton fiber carded sliver respectively through opening picking and carding step, after the low-melting point polyester staple fiber carded sliver, mix at mixing in doubling step, in mixed ripe bar, the percentage by weight of cotton fiber is 80% ~ 85%, the percentage by weight of low-melting point polyester staple fiber is 15% ~ 20%, ripe bar is after Roving Frames, preparation is with terylene AIRJET TEXTURING YARN for heart yearn, cotton fiber and low-melting point polyester staple fiber are the covering yarn of rubber-insulated wire, in covering yarn, the percentage by weight of terylene AIRJET TEXTURING YARN is 45% ~ 55%, the percentage by weight of cotton fiber is 36% ~ 46.7%, the percentage by weight of low-melting point polyester staple fiber is 6.7% ~ 11%. covering yarn then through winder, doubling, twist thread, high temperature arranging process prepare AIRJET TEXTURING YARN core-spun sewing thread. the AIRJET TEXTURING YARN core-spun sewing thread production cost height low, powerful of the present invention, percentage elongation are low, and applicable high speed is sewed processing.

Description

A kind of manufacture method of the core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN
Technical field
The present invention relates to the manufacture method of a kind of core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN, belong to textile technology field.
Background technology
Sewing thread is one of important auxiliary dress materials, plays the effects such as stitching, connection, decoration, has practical and decoration dual-use function concurrently. The quality of sewing thread quality, not only affects sewing efficiency and processing cost, also affects the presentation quality of ready-made clothes. Clothing sewing thread, is generally divided into natural fiber sewing thread, synthetic fibers sewing thread and mixing sewing thread three major types by raw material. What natural fiber sewing thread was conventional has cotton sewing thread and two kinds of silkworm silk line. Cotton sewing thread intensity is higher, heat-resist, is suitable to sewing and DP at a high speed, is mainly used in the sewing of bafta, leather and hot iron medicated clothing. The long filament line made with natural silk or spun silk line, have fabulous gloss, and its intensity, elasticity and anti-wear performance are superior to cotton thread, is suitable to sewing various kinds silk garment, high-grade woollen goods clothing, fur and leather wear etc. Synthetic fibers sewing thread has polyster fibre sewing thread, polyamide filament sewing thread, polyvinyl sewing thread, acrylon sewing thread etc. several, and wherein polyster fibre sewing thread is sewing thread with the most use, the most universal at present, makes with polyester filament or chopped fiber for raw material. Polyster fibre sewing thread has intensity height, good springiness, the feature that wear-resisting, washing shrinkage is low, chemical stability is good, is mainly used in the sewing of cowboy, sportswear, leatherware, woollen and military uniform etc. But dacron suture fusing point is low, easily melts when sewing at a high speed, block pinprick, cause suture breaks. Mixing sewing thread has polyester cotton sewing thread, core-spun sewing thread. Polyester cotton sewing thread has concurrently to be washed and both advantage cotton, can proof strength, wear-resisting, washing shrinkage requirement, the heat labile defect of terylene can be overcome again, adapt to sewing at a high speed, can be used for all kinds of clothing such as cotton, polyester cotton.Core-spun sewing thread with long filament for core, outer cladding natural fiber and prepared sewing thread. The intensity of core-spun sewing thread depends on heart yearn, and wear-resisting and heat-resisting depends on outsourcing yarn. Therefore, core-spun sewing thread is suitable for sewing at a high speed, and needs higher sewing firmly clothing.
In order to meet the requirement of growing garment processing industry, people also research and develop new sewing thread material constantly. AIRJET TEXTURING YARN is to utilize compression air, makes the precursor of chemical fibre by a special nozzle, under high pressure air flow jet-action, makes monofilament be bent to form cyclic structure, and wire ring is mutually entangled, is formed with bulk AIRJET TEXTURING YARN. AIRJET TEXTURING YARN has the outward appearance of spun yarn. Along with the development of air-texturing technology, people's developmental research has gone out terylene AIRJET TEXTURING YARN sewing thread. The AIRJET TEXTURING YARN sewing thread brute force made with high-strength terylene filament is high, it is little to extend, wearability good, tieing is few, uniformity is good, but precursor cost is high, the AIRJET TEXTURING YARN sewing thread made with ordinary polyester long filament, although the cost of precursor is low, but compared with the AIRJET TEXTURING YARN sewing thread that high-strength terylene filament is made, sewing thread brute force is not high, elongation is big.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of powerful high, extend little, wearability good, the manufacture method of the core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN of low cost of manufacture.
To achieve these goals, the technical solution used in the present invention is, the manufacture method of a kind of core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN, and this manufacture method comprises the following steps:
A kind of manufacture method of the core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN, opening picking in manufacturing including core-spun sewing thread, comb and parallel cotton fibers prior to spinning, drafting, rove, spun yarn, winder, doubling, twist thread, high temperature dead twist operation, it is characterised in that: cotton fiber and polyester staple fiber prepare the cotton fiber carded sliver respectively through opening picking and carding step, the polyester staple fiber carded sliver, the cotton fiber carded sliver mixes at mixing in doubling step with the polyester staple fiber carded sliver, in mixed ripe bar, the percentage by weight of cotton fiber is 80%��85%, the percentage by weight of polyester staple fiber is 15%��20%, ripe bar prepares the mixing yarn of cotton fiber and polyester staple fiber through Roving Frames, mixing yarn is prepared with terylene AIRJET TEXTURING YARN for heart yearn through spinning process with terylene AIRJET TEXTURING YARN, the mixing yarn outer cladding in the shape of a spiral covering yarn on heart yearn surface, the course of processing of terylene AIRJET TEXTURING YARN includes precursor and stretches, deformation, thermally-stabilised, sizing, winding process, in covering yarn, the percentage by weight of terylene AIRJET TEXTURING YARN is 45%��55%, and the percentage by weight of cotton fiber is 36%��46.7%, and the percentage by weight of polyester staple fiber is 6.7%��11%, and covering yarn is then through winder, doubling, twist thread, high temperature dead twist operation prepares the core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN.
The fusing point of described polyester staple fiber is less than or equal to 130 DEG C.
The described AIRJET TEXTURING YARN that terylene AIRJET TEXTURING YARN is ordinary polyester preoriented yarn.
Owing to have employed above technical scheme, the AIRJET TEXTURING YARN core-spun sewing thread of the present invention, have the following characteristics that
One compared with prior art, the present invention adopts the mixing yarn rubber-insulated wire as covering yarn of low-melting point polyester staple fiber and cotton fiber, rubber-insulated wire outer cladding in the shape of a spiral is the surface of heart yearn in terylene AIRJET TEXTURING YARN, the leavening structure making terylene AIRJET TEXTURING YARN changes, yarn core becomes tight, and between the wire ring of terylene AIRJET TEXTURING YARN, frictional force increases, and the brute force of sewing thread is improved, percentage elongation reduces, and is adapted to the clothing processing of sewing at a high speed.
Two is heart yearn owing to have employed AIRJET TEXTURING YARN, method at heart yearn Surface coating low-melting point polyester staple fiber, when sewing thread is sewed at a high speed, low-melting point polyester staple fiber is subject to fricative heat effect and contraction on melting, not only make the cohesive force between cotton fiber increase, cotton fiber is coated on more closely the surface of heart yearn simultaneously, between wire ring and the wire ring of AIRJET TEXTURING YARN, be more difficult to sliding, the brute force of sewing thread can be greatly improved, reduce the percentage elongation of sewing thread.Compared with being the AIRJET TEXTURING YARN sewing thread prepared of raw material with high-strength polyester precursor, the present invention can use ordinary polyester preoriented yarn to be raw material, and production cost is low.
Three on existing ring spinning frame, only need to arrange tensioner and godet roller, it is possible to produce AIRJET TEXTURING YARN core-spun sewing thread, suitable for scale production.
Detailed description of the invention
A kind of manufacture method of the core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN, through following steps:
(1) opening picking
Cotton fiber and low-melting point polyester staple fiber carry out opening and cleaning step process respectively. Fibrous raw material, through shredding and impurity removal process, is loosened by fiber, and fiber block is become fritter by bulk, obtains Homogeneous phase mixing between fiber simultaneously, and major part impurity in raw material and fault, while shredding, are removed by fibrous raw material on request. In opening processes, the technological principle of shredding violent, progressive after first relaxing should be followed. Cotton fiber is also noted that multiple rows of caducous assorted greatly, it is prevented that assorted greatly smash after, be not easy in rear working procedure processing remove.
(2) comb and parallel cotton fibers prior to spinning
Cotton fiber and low-melting point polyester staple fiber after being processed by opening picking carry out carding step process, the preparation cotton carded sliver and the low-melting point polyester staple fiber carded sliver respectively. In carding step, fiber assembly is loosened further, the separating degree of fiber is improved under the premise reducing fibre damage as far as possible, make fibre bundle be separated into single fiber state fairly perfectly, continue removal of contamination and fault, and make between fiber, to obtain mix homogeneously careful further, make the strip meeting quantitative requirement, for mixing in doubling step.
(3) drafting
The cotton fiber carded sliver and the low-melting point polyester staple fiber carded sliver mix at mixing in doubling step, the ripe bar of preparation composite fibre, so that two kinds of fibre composition mix homogeneously in strip, adopt three road draftings to be processed. In the ripe bar of the composite fibre prepared at mixing in doubling step, the percentage by weight of cotton fiber is 80%��85%, and the percentage by weight of low-melting point polyester staple fiber is 15%��20%.
(4) rove
Through the ripe bar of the composite fibre that mixing in doubling step is made, carry out drawing-off and twisting through fly frame, make the package of definite shape, it is simple to carrying, storage and the adaptation needs of feeding and unwinding on spinning frame. The drafting multiple of reasonable disposition fly frame makes the feeding requirement quantitatively meeting spun yarn of the rove of mixing yarn.
(5) spun yarn
Above the drafting system of spinning frame, being provided with tensioner and godet roller, the rove feeding drafting assembly of spinning frame of mixing yarn carries out drawing-off. Ordinary polyester preoriented yarn on air-texturing processing machine, the process such as stretched, deformation, thermally-stabilised, sizing, winding, prepare terylene AIRJET TEXTURING YARN. Terylene AIRJET TEXTURING YARN feeds the front roller of drafting assembly of spinning frame through godet roller, enter twist triangle zone together with the mixing yarn after drawing-off to twist, forming terylene AIRJET TEXTURING YARN is heart yearn, mixes the yarn outer cladding in the shape of a spiral covering yarn on heart yearn surface. In the covering yarn prepared, the percentage by weight of terylene AIRJET TEXTURING YARN is 45%��55%, and the percentage by weight of cotton fiber is 36%��46.7%, and the percentage by weight of low-melting point polyester staple fiber is 6.7%��11%.
(6) winder
Through winding procedure, change package, increase the appearance yarn amount of yarn package, improve later process productivity ratio. Remove the fault on yarn, improve yarn quality.Such as slubbing, details, double; two yarn, soft twist yarn, cotton knot etc. Utilize yarn cleaning device that yarn is checked during winder, remove fault that quality is influential and impurity on yarn, improve the uniformity and the fineness of yarn.
(7) doubling
Doubling is to be wound into bobbin after two or many single thread conjunction. Through doubling, it is ensured that single thread number of share of stock, balanced each single yarn tension, reduces strand uneven twist, improves sewing thread powerful, improve sewing thread outward appearance.
(8) twist thread
After doubling operation conjunction two or many single thread are twisted, prepares into strand.
(9) high temperature dead twist
Under uniform temperature and damp condition, strand prepared by twisting process carries out heat treatment, eliminates the internal stress that yarn produces because of twisting, stablizes the twist of yarn, it is to avoid the twist contraction that sewing thread produces affects apparel appearance quality.
By above method, when sewing at a high speed, low-melting point polyester staple fiber is subject to fricative heat effect and contraction on melting, makes yarn core leavening structure change, and yarn core becomes tight, be in yarn core position AIRJET TEXTURING YARN wire ring between frictional force increase; Cotton fiber is subject to the effect that low-melting point polyester staple fiber shrinks simultaneously, increase to the pressure of yarn core, add the frictional force between wire ring and outer cladding fiber, the brute force of covering yarn is improved, percentage elongation reduces, the AIRJET TEXTURING YARN core-spun sewing thread prepared compared with the AIRJET TEXTURING YARN sewing thread of art methods manufacture, have powerful high, heat-resist, antistatic is good, production cost is low, and applicable high speed is sewed processing.
Embodiment
25.9tex the manufacture method of �� 2 terylene AIRJET TEXTURING YARN core-spun sewing threads, through following steps:
(1) opening picking
Cotton fiber and low-melting point polyester staple fiber carry out opening and cleaning step process respectively. Fibrous raw material, through shredding and impurity removal process, is loosened by fiber, and fiber block is become fritter by bulk, obtains Homogeneous phase mixing between fiber simultaneously, and major part impurity in raw material and fault, while shredding, are removed by fibrous raw material on request. In opening processes, the technological principle of shredding violent, progressive after first relaxing should be followed. Cotton fiber is also noted that multiple rows of caducous assorted greatly, it is prevented that assorted greatly smash after, be not easy in rear working procedure processing remove. The grade of distributing cotton of cotton fiber is 1.6, and length is 30.4mm, and fiber linear density is 1.65dtex, and raw cotton mixed proportion is: Xinjiang cotton 40%, Hubei cotton 25%, Shandong cotton 25%, Henan cotton 10%. Low-melting point polyester staple fiber is 1.33dtex, 38mm, and fusing point is 130 DEG C.
(2) comb and parallel cotton fibers prior to spinning
Cotton fiber and low-melting point polyester staple fiber after being processed by opening picking carry out carding step process, the preparation cotton carded sliver and the low-melting point polyester staple fiber carded sliver respectively. In carding step, fiber assembly is loosened further, the separating degree of fiber is improved under the premise reducing fibre damage as far as possible, make fibre bundle be separated into single fiber state fairly perfectly, continue removal of contamination and fault, and make between fiber, to obtain mix homogeneously careful further, make the strip meeting quantitative requirement, for mixing in doubling step. The cotton carded sliver is done quantification of: 20.5g/5m.
For low-melting point polyester staple fiber carding step, it then follows fully combing, the principle shifted smoothly. Take following measure: reduce licker-in rotating speed simultaneously, reduce fibre damage, reduce cotton knot. Reduce cylinder rotating speed, it is prevented that fiber tangles; Select chemical fibre special Card Clothing in good condition, strengthen carding power, improve the extended parallelization of fiber, reduce and return colored phenomenon;Selecting relatively low doffer speed, weight of card sliver is advisable with light grasp partially, reduces the cotton knot of the carded sliver as far as possible. The terylene carded sliver is done quantification of: 19.5g/5m.
(3) drafting
The cotton fiber carded sliver and the low-melting point polyester staple fiber carded sliver are pre-also respectively through FA311 pre-drawing machine, prepare pre-drawing. Cotton pre-drawing dry quantification of: 22g/5m, low melt point polyester fiber pre-drawing dry quantification of: 15.9g/5m. Cotton pre-drawing and low melt point polyester fiber pre-drawing being mixed at FA311 drawing frame, the ripe bar of preparation composite fibre, the feeding radical of the cotton sliver of FA311 drawing frame is 6, and the feeding radical of low melt point polyester fiber pre-drawing is 2. So that two kinds of fibre composition mix homogeneously in strip, three road draftings are adopted to be processed. In the ripe bar of the composite fibre prepared at mixing in doubling step, the percentage by weight of cotton fiber is 80.6%, and the percentage by weight of low-melting point polyester staple fiber is 19.4%. Ripe bar dry quantification of: 19g/5m.
(4) rove
Through the ripe bar of the composite fibre that mixing in doubling step is made, carry out drawing-off and twisting through FA401 fly frame, make the rove of the composite fibre of definite shape package, it is simple to carrying, storage and the adaptation needs of feeding and unwinding on spinning frame. The drafting multiple of reasonable disposition fly frame makes the feeding requirement quantitatively meeting spun yarn of the rove of composite fibre. The dry quantitative design of rove is: 5g/10m, twist factor is 106.
(5) spun yarn
Above the drafting system of FA506 spinning frame, being provided with tensioner and godet roller, the rove feeding drafting assembly of spinning frame of composite fibre carries out drawing-off. The precursor of ordinary polyester POY125dtex/36F on air-texturing processing machine, the process such as stretched, deformation, thermally-stabilised, sizing, winding, prepare terylene AIRJET TEXTURING YARN. Terylene AIRJET TEXTURING YARN feeds the front roller of drafting system through godet roller, enter twist triangle zone together with the mixing yarn after drawing-off to twist, forming terylene sky textured filament is heart yearn, mixes the yarn outer cladding in the shape of a spiral covering yarn on heart yearn surface, and yarn twist factor is: 300. The percentage by weight of feeding terylene AIRJET TEXTURING YARN is 48.3%, and the percentage by weight of the cotton composite fibre with polyester staple fiber of feeding is 51.7%. Therefore the composition by weight percent of the final covering yarn manufactured is: the percentage by weight of terylene AIRJET TEXTURING YARN is 48.3%, and the percentage by weight of cotton fiber is 41.7%, and the percentage by weight of low-melting point polyester staple fiber is 10%.
(6) winder
Through TZL2008 type bobbin-winding machine winder, change package, increase the appearance yarn amount of yarn package, improve later process productivity ratio. Remove the fault on yarn, improve yarn quality. Such as slubbing, details, double; two yarn, soft twist yarn, cotton knot etc. Utilize yarn cleaning device that yarn is checked during winder, remove fault that quality is influential and impurity on yarn, improve the uniformity and the fineness of yarn.
(7) doubling
Doubling is that after JWF1717 type doubling winder conjunction, two single thread are wound into bobbin. Through doubling, it is ensured that single thread number of share of stock, balanced each single yarn tension, reduces strand uneven twist, improves sewing thread powerful, improve sewing thread outward appearance.
(8) twist thread
Two single thread after doubling operation conjunction are twisted at TDN-128B two-for-one twister, prepares into strand.
(9) high temperature dead twist
Strand prepared by twisting process through excess temperature be 95 DEG C, the time be the steam heat heat treatment of 50 minutes, eliminate the internal stress that yarn produces because of twisting, stablize the twist of yarn, it is to avoid the twist contraction of sewing thread generation affects apparel appearance quality.
The performance of the terylene AIRJET TEXTURING YARN core-spun sewing thread obtained through above-mentioned technological process is as shown in table 1.
Table 1
Project 29.5tex �� 2 terylene AIRJET TEXTURING YARN core-spun sewing threads
Fracture strength (cN.tex-1) 45.8
Elongation at break (%) 14.2
Single yarn strength CV CV (%) 3.2
Bar does (%) 8.7

Claims (2)

1. a manufacture method for the core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN, opening picking in manufacturing including core-spun sewing thread, comb and parallel cotton fibers prior to spinning, drafting, rove, spun yarn, winder, doubling, twist thread, high temperature dead twist operation, it is characterised in that: cotton fiber and polyester staple fiber prepare the cotton fiber carded sliver respectively through opening picking and carding step, the polyester staple fiber carded sliver, the cotton fiber carded sliver mixes at mixing in doubling step with the polyester staple fiber carded sliver, in mixed ripe bar, the percentage by weight of cotton fiber is 80%��85%, the percentage by weight of polyester staple fiber is 15%��20%, ripe bar prepares the mixing yarn of cotton fiber and polyester staple fiber through Roving Frames, mixing yarn is prepared with terylene AIRJET TEXTURING YARN for heart yearn through spinning process with terylene AIRJET TEXTURING YARN, the mixing yarn outer cladding in the shape of a spiral covering yarn on heart yearn surface, the course of processing of terylene AIRJET TEXTURING YARN includes precursor and stretches, deformation, thermally-stabilised, sizing, winding process, in covering yarn, the percentage by weight of terylene AIRJET TEXTURING YARN is 45%��55%, and the percentage by weight of cotton fiber is 36%��46.7%, and the percentage by weight of polyester staple fiber is 6.7%��11%, and covering yarn is then through winder, doubling, twist thread, high temperature dead twist operation prepares the core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN,
The fusing point of described polyester staple fiber is less than or equal to 130 DEG C;
Described high temperature dead twist operation is strand prepared by twisting process is 95 degrees Celsius through excess temperature, and the steam shaping that the time is 50 minutes processes.
2. the manufacture method of a kind of core-spun sewing thread being heart yearn with AIRJET TEXTURING YARN as claimed in claim 1, it is characterised in that: the described AIRJET TEXTURING YARN that terylene AIRJET TEXTURING YARN is ordinary polyester preoriented yarn.
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